FR2625358A1 - ELECTRO-OPTICAL DISPLAY DEVICE - Google Patents
ELECTRO-OPTICAL DISPLAY DEVICE Download PDFInfo
- Publication number
- FR2625358A1 FR2625358A1 FR8817104A FR8817104A FR2625358A1 FR 2625358 A1 FR2625358 A1 FR 2625358A1 FR 8817104 A FR8817104 A FR 8817104A FR 8817104 A FR8817104 A FR 8817104A FR 2625358 A1 FR2625358 A1 FR 2625358A1
- Authority
- FR
- France
- Prior art keywords
- circuit board
- printed circuit
- conductive tracks
- coupling element
- cell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000008878 coupling Effects 0.000 claims abstract description 22
- 238000010168 coupling process Methods 0.000 claims abstract description 22
- 238000005859 coupling reaction Methods 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims description 7
- 239000004020 conductor Substances 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 210000004027 cell Anatomy 0.000 description 15
- 238000000034 method Methods 0.000 description 3
- 229920001296 polysiloxane Polymers 0.000 description 3
- 241000283070 Equus zebra Species 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 210000002858 crystal cell Anatomy 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000615 nonconductor Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1345—Conductors connecting electrodes to cell terminals
- G02F1/13452—Conductors connecting driver circuitry and terminals of panels
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/70—Coupling devices
- H01R12/71—Coupling devices for rigid printing circuits or like structures
- H01R12/712—Coupling devices for rigid printing circuits or like structures co-operating with the surface of the printed circuit or with a coupling device exclusively provided on the surface of the printed circuit
- H01R12/714—Coupling devices for rigid printing circuits or like structures co-operating with the surface of the printed circuit or with a coupling device exclusively provided on the surface of the printed circuit with contacts abutting directly the printed circuit; Button contacts therefore provided on the printed circuit
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
- H05K3/34—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
- H05K3/3405—Edge mounted components, e.g. terminals
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/03—Conductive materials
- H05K2201/0302—Properties and characteristics in general
- H05K2201/0314—Elastomeric connector or conductor, e.g. rubber with metallic filler
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10007—Types of components
- H05K2201/10128—Display
- H05K2201/10136—Liquid Crystal display [LCD]
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10227—Other objects, e.g. metallic pieces
- H05K2201/10386—Clip leads; Terminals gripping the edge of a substrate
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10431—Details of mounted components
- H05K2201/10439—Position of a single component
- H05K2201/10446—Mounted on an edge
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
- H05K3/325—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by abutting or pinching, i.e. without alloying process; mechanical auxiliary parts therefor
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/36—Assembling printed circuits with other printed circuits
- H05K3/366—Assembling printed circuits with other printed circuits substantially perpendicularly to each other
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
Abstract
La plaquette de circuits imprimés 17 est maintenue appuyée sensiblement perpendiculairement à la plaque frontale 15 contre sa zone de bordure de raccordement 14 avec interposition de l'élément de couplage 19. Pour éviter des insécurités de contact entre l'élément de couplage 19 et les extrémités des pistes conductrices 18 de la plaquette, on les prolonge électriquement autour du bord frontal 21 de la plaquette par des bornes de raccordement en L ou en U 22. Les bornes de raccordement 22 peuvent être appliquées sous la forme d'une série complète liée par des jonctions 27 que l'on ne subdivise qu'ensuite par séparation des jonctions en forme de rebords en les bornes 22 électriquement séparées de raccordement des pistes conductrices.The printed circuit board 17 is kept pressed substantially perpendicular to the front plate 15 against its connection edge zone 14 with the interposition of the coupling element 19. To avoid contact insecurities between the coupling element 19 and the ends conductive tracks 18 of the plate, they are extended electrically around the front edge 21 of the plate by L-shaped or U-shaped connection terminals 22. The connection terminals 22 can be applied in the form of a complete series linked by junctions 27 which are only subdivided afterwards by separating the junctions in the form of rims into the electrically separate terminals 22 for connecting the conductive tracks.
Description
! Dispositif d'affichage électro-optique La présente invention concerne un! The present invention relates to an electro-optical display device.
dispositif d'affichage électro-optique comportant un raccordement éléctrique de sa cellule d'affichage à une plaquette à circuits-imprimés, placé derrière par l'intermédiaire d'un élément de couplage à plusieurs conducteurs, en particulier réalisée sous la forme d'un dispositif d'affichage à cristaux liquides comportant une plaquette à circuitsimprimés, placée derrière son plan frontal situé du côté de l'observateur pour des montages d'activation et leur mise en contact par l'intermédiaire de connecteurs de silicone dits "zébrés". On connait un dispositif d'affichage de ce type, par exemple par la DE-A 33 13 080. Dans ce mode de réalisation, ainsi que dans tous les autres modes de réalisation de tels dispositifs d'affichage que l'on electro-optical display device comprising an electrical connection of its display cell to a printed circuit board, placed behind by means of a coupling element with several conductors, in particular produced in the form of a liquid crystal display device comprising a printed circuit board, placed behind its front plane situated on the side of the observer for activation assemblies and their contacting by means of so-called "zebra" silicone connectors. A display device of this type is known, for example from DE-A 33 13 080. In this embodiment, as well as in all the other embodiments of such display devices that are
peut trouver sur le marché, la plaquette de circuits- can find on the market, the circuit board-
imprimés, s'étend parallèlement au plan frontal derrière la cellule d'affichage, et en s'étendant en outre, pour des raisons de réalisation de contact, plus printed, extends parallel to the frontal plane behind the display cell, and further extending, for reasons of contact making, more
ou moins loin au-delà de la bordure de la cellule. or less far beyond the edge of the cell.
Du fait que, dans le cas d'une telle structure, la projection de la surface de cellule sur la plaquette de circuits-imprimés, placée à l'arrière est décalée par rapport & sa bordure, la dimension d'insertion frontale de la cellule dépasse latéralement côté plaquette de circuitsimprimés au moins dans des zones partielles. Cela a pour conséquence que derrière le plan frontal du dispositif d'affichage incorporé dans un tableau de bord, par exemple de véhicule automobile, il faut garder encore de la place libre latéralement Because, in the case of such a structure, the projection of the cell surface on the printed circuit board, placed at the rear is offset relative to its border, the front insertion dimension of the cell laterally protrudes on the printed circuit board side at least in partial areas. This has the consequence that behind the front plane of the display device incorporated in a dashboard, for example of a motor vehicle, it is necessary to keep some free space laterally.
pour le raccordement de la plaquette de ciruits- for the connection of the circuit board-
imprimés, ce qui d'une part prescrit la direction d'insertion du dispositif d'affichage complet (soit de l'arrière vers le plan frontal) et,. d'autre part, limite la place de montage utilisable au-delà de la limite côté visible de la cellule d'affichage, donc printed, which on the one hand prescribes the direction of insertion of the complete display device (ie from the rear to the front plane) and ,. on the other hand, limits the usable mounting place beyond the visible side limit of the display cell, therefore
gêne d'autres instruments à placer à côté. hinders other instruments to be placed next to it.
Compte tenu de ces données, l'invention a pour objet de conformer un dispositif d'affichage du type indiqué de façon que même par le raccordement électromécanique de la plaquette à circuits-imprimés derrière la cellule d'affichage, la restriction frontale de.son espace de montage ne soit plus accentuée par des parties en saillie de la plaquette de circuits-imprimés. Pour atteindre cet objectif, selon l'invention, la plaquette de circuits-imprimés est placée derrière la cellule suivant un angle obtus par rapport au plan frontal de la cellule, en étant appuyée contre l'élément de couplage sous une pression d'appui Given these data, the invention aims to conform a display device of the type indicated so that even by the electromechanical connection of the printed circuit board behind the display cell, the frontal restriction de.son mounting space is no longer accentuated by projecting parts of the printed circuit board. To achieve this objective, according to the invention, the printed circuit board is placed behind the cell at an obtuse angle relative to the frontal plane of the cell, by being pressed against the coupling element under a pressing pressure.
frontale de ses extrémités de pistes conductrices. frontal of its ends of conductive tracks.
Selon l'invention: - La plaquette de circuits-imprimés est maintenue perpendiculairement à la plaque frontale de la cellule, en étant appuyée avec interposition de l'élément de couplage, contre sa zone marginale postérieure. - On prévoit entre le bord frontal de raccordement de la plaquette de circuits-imprimés et l'élément de couplage des bornes de raccordement embrassant le bord frontal dans la zone de pistes conductrices qui s'y achèvent en les recouvrant en L ou en U. - Les bornes de raccordement sont appliquées en étant reliées entre elles en une série d'un seul tenant According to the invention: - The printed circuit board is held perpendicular to the front plate of the cell, while being pressed with the interposition of the coupling element, against its posterior marginal zone. - Provision is made between the front connection edge of the printed circuit board and the coupling element for connection terminals embracing the front edge in the region of conductive tracks which end there by covering them in L or U shape. - The connection terminals are applied by being interconnected in a series in one piece
sur le bord frontal de la plaquette de circuits- on the front edge of the circuit board-
imprimés et sont alors seulement séparées. printed and are then only separated.
- La série de bornes de raccordement est formée à partir d'une matière en bande conductrice plate par formation de nervures encore reliées entre elles par des Jonctions marginales, que l'on place coudées sur le bord frontal de la plaquette de circuits imprimés et - The series of connection terminals is formed from a flat conductive strip material by the formation of ribs still connected to each other by marginal junctions, which are placed bent on the front edge of the printed circuit board and
les pistes conductrices qui s'y achèvent. the conductive tracks which end there.
- On prévoit des bornes de raccordement individuelles qui, sous la forme de cavaliers en U, sont placés sur les extrémités frontales des pistes conductrices - Les bornes en U subissent un guidage longitudinal ou un positionnement dans des évidemenrts qui se trouvent, à l'opposé des pistes conductrices correspondantes, sur l'autre face de la plaquette de - Individual connection terminals are provided which, in the form of U-shaped jumpers, are placed on the front ends of the conductive tracks - The U-shaped terminals undergo longitudinal guidance or positioning in recesses which are located, opposite corresponding conductive tracks, on the other face of the plate
circuits imprimés.printed circuits.
Selon cette solution, le contact de la cellule d'affichage avec la plaquette de circuits-imprimés, n'est plus à présent réalisé dans une direction parallèle au plan de la cellule, mais plus ou moins transversalement (de préférence perpendiculairement) à lui, la plaquette de circuits-imprimés étant raccordée par le bord frontal auquel ses pistes conductrices s'achèvent, par l'intermédiaire de l'élément de couplage, aux pistes conductrices correspondantes situées sur la face postérieure de la plaque frontale des cellules. On dispose aussi de ce fait de davantage de place en surface - derrière la cellule pour l'engagement à l'arrière d'autres éléments de construction et de montage éventuels, tandis que, d'autre part, indépendamment de la surface nécessitée par les techniques de montage actuelles pour la plaquette a circuits-imprimés, il y. a toujours la même zone de montage en projection sur la cellule. De façon appropriée, un raccordement des extrémités des pistes conductrices de la plaquette de circuits-imprimés avec l'élément de couplage est alors réalisée par des bornes de raccordement en métal, qui sont -formées en un Jeu complet, avec une dimension et une orientation déjà adaptée géométriquement, à partir d'une matière en bande plate, et peuvent être placées sous la forme d'un groupe dont la cohésion est d'abord encore assurée mécaniquement, que l'on sépare alors seulement en les According to this solution, the contact of the display cell with the printed circuit board is no longer made in a direction parallel to the plane of the cell, but more or less transversely (preferably perpendicular) to it, the printed circuit board being connected by the front edge to which its conductive tracks end, by means of the coupling element, with the corresponding conductive tracks situated on the rear face of the front plate of the cells. As a result, there is also more space on the surface - behind the cubicle for the engagement at the rear of other possible construction and mounting elements, while, on the other hand, independently of the surface required by the current mounting techniques for printed circuit board, there. always has the same mounting area projected onto the cell. Suitably, a connection of the ends of the conductive tracks of the printed circuit board with the coupling element is then carried out by metal connection terminals, which are formed into a complete set, with a dimension and an orientation. already geometrically adapted, from a material in flat strip, and can be placed in the form of a group whose cohesion is first of all still mechanically ensured, which is then separated only by
bornes individuelles.individual terminals.
D'autres variantes et développements ainsi que d'autres avantages et caractéristiques de l'invention Other variants and developments as well as other advantages and characteristics of the invention
ressortiront de la description détaillée qui va suivre will emerge from the detailed description which follows
un exemple de réalisation représenté sur le dessin annexe schématique limité à l'essentiel, mais à peu près à l'échelle, dont: La figure 1 représente une plaquette de circuits-imprimés, raccordée transversalement à la direction frontale du dispositif d'affichage derrière lui; La figure 2 représente une pièce découpée pour la production de groupes de bornes de contact en vue de dessus, et la figure 3 représente la pièce découpée de la figure 2, en vue oblique, mais pas encore séparée en an embodiment shown in the accompanying schematic drawing limited to the essentials, but approximately to scale, of which: FIG. 1 represents a printed circuit board, connected transversely to the front direction of the display device behind him; FIG. 2 represents a cut out part for the production of groups of contact terminals in top view, and FIG. 3 represents the cut out part of FIG. 2, in oblique view, but not yet separated in
les bornes de contact individuelles. individual contact terminals.
Dans la représentation esquissée en coupe transversale interrompue de la figure 1, le dispositif d'affichage, électro-optique 11 est, par exemple, une cellule à cristaux liquides 12 dont les électrodes de représentation peuvent être activées par l'intermédiaire de voies conductrices 13 qui sont accessibles sur la zone marginale postérieure-14 de la plaque frontale d'affichage 15. L'activation a lieu par l'intermédiaire de circuits électroniques 16 placés sur une plaquette de circuits imprimés 17 en matière isolante comportant, par exemple, des pistes conductrices de raccordement 18 appliquées par placage qui sont raccordées par l'intermédiaire d'un élément de couplage électrique élastique 19 à la série rattachée correspondante enn technique des montages de pistes conductrices d'affichage contigUes 13. L'élément de couplage 19 est, de préférence, un connecteur de silicone dit "Zébré" usuel dans le commerce, donc un parallélépipède allongé comprenant une série de volumes de section droite alternativement électriquement In the sketched representation in interrupted cross-section of FIG. 1, the electro-optical display device 11 is, for example, a liquid crystal cell 12 whose representation electrodes can be activated via conductive channels 13 which are accessible on the posterior marginal zone-14 of the front display plate 15. Activation takes place by means of electronic circuits 16 placed on a printed circuit board 17 made of insulating material comprising, for example, tracks connecting conductors 18 applied by plating which are connected by means of an elastic electrical coupling element 19 to the corresponding attached series in the technique of mounting contiguous display conductive tracks 13. The coupling element 19 is, from preferably a silicone connector called "Zebra" usual in the trade, therefore an elongated parallelepiped comprising a series of volumes of straight section e alternately electrically
conducteurs et non-conducteurs.conductors and non-conductors.
Pour ne pas avoir encore besoin, latéralement à -35 côté de la cellule 12, de place de montage pour des éléments de couplage de raccordement 19 (et là o c'est possible pour la plaquette de circuits-imprimés, 17 elle-même) , donc pour pouvoir limiter les dimensions de montage du dispositif d'affichage 11 dans le plan de sa plaque frontale 15 à peu près à ses dimensions, l'élément de couplage 19 ne se raccorde pas & présent parallèlement à la plaque frontale 15 aux pistes conductrices d'affichage 13, mais avec une orientation transversale au plan frontal 20 côté observateur So as not to need, laterally -35 side of the cell 12, mounting space for connection coupling elements 19 (and where possible for the printed circuit board, 17 itself) , therefore in order to be able to limit the mounting dimensions of the display device 11 in the plane of its front plate 15 approximately to its dimensions, the coupling element 19 does not connect & present parallel to the front plate 15 to the tracks display conductors 13, but with an orientation transverse to the frontal plane 20 on the observer side
derrière la zone marginale 14 de la plaque frontale. behind the marginal zone 14 of the front plate.
Dans cette orientation transversale également, il se raccorde derrière l'élément de couplage 19 la plaquette de circuits imprimés 17 qui est donc maintenue appuyée contre l'élément de couplage 19 frontalement sur la face frontale opposée à la zone marginale 14 de la Also in this transverse orientation, it is connected behind the coupling element 19 the printed circuit board 17 which is therefore kept pressed against the coupling element 19 frontally on the front face opposite to the marginal zone 14 of the
plaque frontale.front plate.
En particulier lorsque les éléments de couplage 19 sont les connecteurs de silicone semblables au caoutchouc mentionnés, il peut suffir d'appuyer le bord frontal de raccordement 21 de la plaquette 17 avec ses pistes conductricees 18 qui s'y achèvent suffisamment fort pour qu'il se produise dans la zone de contact une déformation (empreinte) suffisante des éléments de couplage 19 pour la réalisation d'un contact avec les extrémités frontales des pistes semi-conductrices de circuits 18. On obtient cependant une réalisation de contact plus sûre lorsqu'il correspond à chacune des pistes conductrices de circuits 18 à y raccorder. comme il est indiqué sur la figure- 1 une borne de raccordement électriquement conductrice, de préférence métallique 22, ces bornes embrassant chacune avec contact de la piste semi conductrice 18 correspondante le bord frontal de raccordement 21 de la plaquette 17 en L ou même en U et étant, par exemple,soudées & la piste conductrice 18 correspondante ou fixée sous l'effet d'une force élastique sur elle. Par suite, la surface frontale de borne 23 est disponible en tant que zone de transition de surface relativement importante pour la zone de section droite conductrice géométriquement correspondante de l'élément de couplage 19. Ces bornes de raccordement 22 peuvent être placées à la façon de trombones ou de cavaliers en U individuellement sur le bord frontal 21 de la plaquette de circuits-imprimés, par exemple guidées dans les sillons postérieurs correspondant aux pistes conductrices individuelles 18. Il est cependant plus simple, du point de vue de la technique de fabrication, de placer la pluralité de ces bornes 22 d'une seule pièce, donc en un seul stade, sur le bord frontal 21 de la plaquette à circuits imprimés. Par conséquent, il convient, selon la figure 2, de pratiquer dans une matière en bande électriquement conductrice 24 des évidements 25 (par exemple par estampage ou corrosion), de façon qu'il reste une série de nervures 26 parallèles correspondant à la géométrie des pistes conductrices 18 mutuellement voisines, qui restent encore d'abord reliées entre elles mécaniquement à leurs extrémités, dans la direction de la longueur de la matière en bande 24, par des Jonctions. 27. La matière en bande plate 24 ainsi préparée est ensuite repliée le long de lignes de pliage 28 qui s'étendent parallèlement aux jonctions 27 en franchissant les nervures 26 transversalement à celles-ci, de façon qu'il se forme une cuvette 31, par exemple en U, avec au moins un collet 29 s'étendant en direction longitudinale, sous forme des Jonctions 27 avec les zones des nervures 26 qui se raccordent, avec des aJours de cuvette 30 sous forme des évidements 25 formés précédement entre les nervures 26 d'une part et d'autre part les Jonctions 27 (figure 3). On choisit l'outil de pliage à vive arête pour les bornes en U 22 de façon que la section intérieure de la cuvette corresponde aux contours extérieurs donnés de la plaquette 17 dans la zone de son bord frontal de raccordement 21, de façon que l'on puisse placer cette cuvette 31 avec concordance de forme (et aussi éventuellement à force, selon la matière de bande 24) sur le bord frontal 21. Les parties des nervures 26 venant ainsi se placer sur les pistes conductrices 18 leur sont alors soudées, avant que la cuvette 31 soit séparée en la série de bornes de raccordement individuelles 22, les. collets repliés 29 donc les nervures 26 individuelles formant alors les bornes de In particular when the coupling elements 19 are the silicone connectors similar to the rubber mentioned, it may suffice to press the front connecting edge 21 of the wafer 17 with its conductive tracks 18 which end there strong enough so that it a sufficient deformation (imprint) of the coupling elements 19 occurs in the contact zone for making contact with the front ends of the semiconductor tracks of circuits 18. However, a more secure contact is obtained when it corresponds to each of the conductive tracks of circuits 18 to be connected to it. as indicated in figure- 1 an electrically conductive connection terminal, preferably metallic 22, these terminals each embracing with contact of the corresponding semiconductor track 18 the front connection edge 21 of the plate 17 in L or even in U and being, for example, welded to the corresponding conductive track 18 or fixed under the effect of an elastic force on it. As a result, the terminal front surface 23 is available as a relatively large surface transition zone for the geometrically conductive cross-sectional area of the coupling element 19. These connection terminals 22 can be placed in the manner of paper clips or U-shaped jumpers individually on the front edge 21 of the printed circuit board, for example guided in the rear grooves corresponding to the individual conducting tracks 18. It is however simpler, from the point of view of the manufacturing technique, placing the plurality of these terminals 22 in one piece, therefore in a single stage, on the front edge 21 of the printed circuit board. Consequently, it is advisable, according to FIG. 2, to make recesses 25 in an electrically conductive strip material 24 (for example by stamping or corrosion), so that there remains a series of parallel ribs 26 corresponding to the geometry of the mutually adjacent conductive tracks 18, which still remain mechanically connected to each other at their ends, in the direction of the length of the strip material 24, by Junctions. 27. The flat strip material 24 thus prepared is then folded along fold lines 28 which extend parallel to the junctions 27 by crossing the ribs 26 transversely thereto, so that a bowl 31 is formed, for example in a U, with at least one collar 29 extending in the longitudinal direction, in the form of Junctions 27 with the regions of the ribs 26 which are connected, with trough days 30 in the form of recesses 25 formed previously between the ribs 26 on the one hand and on the other hand Junctions 27 (Figure 3). The sharp edge bending tool is chosen for the U-shaped terminals 22 so that the internal section of the bowl corresponds to the given external contours of the plate 17 in the region of its front connecting edge 21, so that the this cup 31 can be placed with shape concordance (and also optionally by force, depending on the strip material 24) on the front edge 21. The parts of the ribs 26 thus being placed on the conductive tracks 18 are then welded to them, before that the bowl 31 is separated into the series of individual connection terminals 22, the. folded collars 29 therefore the individual ribs 26 then forming the terminals of
raccordement 22 étant séparés électriquement entre eux. connection 22 being electrically separated from each other.
La zone centrale des nervures 26 constituant le fond de la cuvette représante alors la surface frontale 23 de chaque borne respective qui est appuyée pour réaliser le contact électrique, comme on l'a décrit, contre The central region of the ribs 26 constituting the bottom of the bowl then representing the front surface 23 of each respective terminal which is pressed to make the electrical contact, as described, against
l'élément de couplage 19.the coupling element 19.
Claims (7)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19873743841 DE3743841A1 (en) | 1987-12-23 | 1987-12-23 | Electrooptic display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2625358A1 true FR2625358A1 (en) | 1989-06-30 |
| FR2625358B1 FR2625358B1 (en) | 1993-04-16 |
Family
ID=6343456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8817104A Expired - Fee Related FR2625358B1 (en) | 1987-12-23 | 1988-12-23 | ELECTRO-OPTICAL DISPLAY DEVICE |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE3743841A1 (en) |
| FR (1) | FR2625358B1 (en) |
| IT (1) | IT1228047B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4113901A1 (en) * | 1991-04-27 | 1992-10-29 | Krone Ag | MODULAR DISPLAY DEVICE MADE FROM LIQUID CRYSTAL CELLS |
| DE9208632U1 (en) * | 1992-06-27 | 1993-11-11 | Borg Instruments Verwaltung-Gmbh, 75196 Remchingen | Display |
| DE4310112A1 (en) * | 1993-03-27 | 1994-09-29 | Licentia Gmbh | Liquid-crystal display device |
| DE4416096A1 (en) * | 1994-04-19 | 1995-10-26 | Deutsche Telephonwerk Kabel | Contacting of actuating and display means |
| DE19516348C2 (en) * | 1995-05-04 | 1998-04-09 | Valeo Borg Instr Verw Gmbh | Contact device |
| DE19615350A1 (en) * | 1996-04-18 | 1997-10-23 | Valeo Borg Instr Verw Gmbh | Contact device |
| DE19706153A1 (en) * | 1997-02-17 | 1998-08-20 | Fuba Automotive Gmbh | Spring contact esp for printed circuits |
| DE10316512A1 (en) * | 2003-04-09 | 2004-10-21 | Werma Signaltechnik Gmbh + Co. Kg | signaller |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3737729A (en) * | 1971-06-14 | 1973-06-05 | Zeltex Inc | Electronic package and method of construction |
| EP0121149A1 (en) * | 1983-03-31 | 1984-10-10 | Koninklijke Philips Electronics N.V. | Electrical connector device for liquid crystal cells |
| EP0173627A1 (en) * | 1984-08-31 | 1986-03-05 | Compagnie D'informatique Militaire Spatiale Et Aeronautique | Connection device for electronic boards |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3764955A (en) * | 1972-05-17 | 1973-10-09 | Amp Inc | Connecting and mounting means for substrates |
| CH601960A5 (en) * | 1974-12-06 | 1978-07-14 | Siemens Ag | Terminal mounting for rectangular circuit substrate |
| DE3313080A1 (en) * | 1983-04-12 | 1984-10-18 | Brown, Boveri & Cie Ag, 6800 Mannheim | Device for contacting a display unit to a liquid crystal layer |
-
1987
- 1987-12-23 DE DE19873743841 patent/DE3743841A1/en active Granted
-
1988
- 1988-12-16 IT IT8822987A patent/IT1228047B/en active
- 1988-12-23 FR FR8817104A patent/FR2625358B1/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3737729A (en) * | 1971-06-14 | 1973-06-05 | Zeltex Inc | Electronic package and method of construction |
| EP0121149A1 (en) * | 1983-03-31 | 1984-10-10 | Koninklijke Philips Electronics N.V. | Electrical connector device for liquid crystal cells |
| EP0173627A1 (en) * | 1984-08-31 | 1986-03-05 | Compagnie D'informatique Militaire Spatiale Et Aeronautique | Connection device for electronic boards |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2625358B1 (en) | 1993-04-16 |
| DE3743841A1 (en) | 1989-07-13 |
| DE3743841C2 (en) | 1991-08-29 |
| IT1228047B (en) | 1991-05-27 |
| IT8822987A0 (en) | 1988-12-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0296511B1 (en) | Method of fabricating a tape intended to provide circuits for electronic modules, and tape obtained by this method | |
| FR2529718A1 (en) | METHOD FOR CONNECTING TWO PLATES OF PRINTED CIRCUITS OF DIFFERENT TYPES | |
| WO2006067300A1 (en) | Device for measuring a current flowing in a cable | |
| FR2625358A1 (en) | ELECTRO-OPTICAL DISPLAY DEVICE | |
| FR2495845A1 (en) | CLAMPING DEVICE BETWEEN THE OVERLAPPED ELEMENTS OF ALIGNED GROUPS, IN PARTICULAR FOR THE ELECTRICAL CONNECTION OF CONDUCTIVE ELEMENTS | |
| FR2570519A1 (en) | ELECTRONIC CIRCUIT PANEL FOR A WATCHING DEVICE | |
| EP0860095B1 (en) | Method for making a sound transducer integrated into an acoustic signal generating card | |
| EP0313456B1 (en) | Copolymers useful as multifunctional additives in lubricants, and compositions containing these copolymers | |
| EP0828413B1 (en) | Electro-optical display and flexible support for devices like this to be used for electrical supply for the displays | |
| FR2554977A1 (en) | Connector for electrical-circuit card, especially of the credit-card type having an incorporated electrical circuit | |
| FR3060901B1 (en) | ELECTRONIC POWER MODULE | |
| JP2006147312A (en) | Connector | |
| FR2575336A1 (en) | Connector having non-sliding contacts | |
| FR2563948A1 (en) | IMPROVEMENTS ON ELECTRICAL CONNECTORS AND MANUFACTURING METHODS THEREOF | |
| EP0021992B1 (en) | Control electrodes system for a seven digits indicator | |
| EP0418345A1 (en) | Process for producing a flat connection | |
| FR2783975A1 (en) | ALIGNMENT BAR FOR POSITIONING CONDUCTORS IN RELATION TO CONTACT PINS OF AN ELECTRONIC BOX | |
| EP1085553A1 (en) | Process for manufacturing fuse holder modules in serie and fuse holder modules made by this process | |
| FR2762145A1 (en) | METHOD AND DEVICE FOR PLACING A LEG IN CONTACT WITH A CONDUCTIVE TAPE | |
| EP0089439A2 (en) | Support device for liquid crystal display | |
| FR2632457A1 (en) | CONTACT ARRANGEMENT COMPRISING AN FILLED PART AND TOOL FOR ITS MATRIXING | |
| EP3672382B1 (en) | Pressing element, assembly and electrical equipment | |
| EP1371113B1 (en) | Power connector for a printed circuit | |
| JP2005293979A (en) | Connection method of terminal | |
| WO1997040469A1 (en) | Electronic assembly comprising an electronic unit connected to a coil |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |